Improvement in machines for heading bolts and spikes



UNITED STATE-s PATENT OEETcE.

REINEoLD ROEKLEN, oF BROOKLYN, NEw YORK, AssieNoR To HIMsELE AND HENRYToRsTRIoK, oE NEW YORK oITY.

IMPROVEMENT IN MACl-IINES FOR HEADING BOLTS AND SPIKES.

Specification forming part of Letters Patent No. ll 2,410, dated March7, 187.1; antedated FebruaryY 28, 1871.

Va vibrating pressure, or to operate the header,

so as to press the metal from several directions onward to the center ofthe shank on the bottom of the head instead of operating the header inthe usual manner with a single motion in 011e and the same directiontoward the bottom of the head. p

Bymeans of its compound `motion the face 4of the header is caused tovibrate while operating upon thefumetal in upsetting, expelling therebyany air or gases which may be confined between said face and the metal,and preventing such gases to interfere with obtaining the desiredsolidbearing of` said face upon the metal. Y

Bythe vibrating pressure the particles of metal are permitted to have agradual progressive movement to locate themselves accordingly, so as toll up completely the spaces designed for them in the header-face orcountersunk of the clamp, and without requiring the extravagantexpenditure of power necessitated in consequence of the construction ofheading-machines now in use.

In the accompanying drawing, which makes a part ot' this speciication,Figure I represents a vertical longitudinal section of a machineformaking screw spikes and bolts, in which myinvention is exhibited inthe mechanism for upsetting the head ofthe bolt or spike. Fig. II is adetached top view of said mechanism, the parts in close connectiontherewith being shown bisected. Fig. III is a side view, and Fig. IV atop view, of a modification of my improvements.

A, Fig. I, represents the frame; B, the usual `guide for thematerial tobe worked by the machine. C C represent the dies for clamping said"material while being headed; D, the spiral-grooved rollers forthreading, and E the tongues for forwarding the material-frein thefurnace into the machine. F is the drivin g-shatt of the same, anddirectly from it Vthe heading mechanism receives its motion by means ofthe crank or eccentric G, which is secured to or formed on said shaft.vH represents the header or punch, the working face of which is so shapedas to correspond to, and in combination with its compound motion form,the head of the desired shape on the spike or bolt. Its rear end isjointed to a link, I, havin g its fulcrum J in the frame A nearly inline with the central opening of the clamps C G, by means of the rod K,which is connected with the crank G on its one end, and on its Motherend with the common joint of the link I and the header H, in a manner toallow for said rod universal motion. The forward part or working end ofthe header is guided in the frame Ain the usual manner to keep it in itsproper place.

It will be observed that when thecrank is on its upper stroke the headeris withdrawn to allow the material to feed up to the header, and as thecrank is drawn to the center of its stroke the header is forced up, soas to cause the upsetting of the metal, and while proceeding in thatmotion it is continually changing or varyin g the position of itsworking face toward the work or metal, whereby the liability of keepingor concealing air or gases between said face and the Vmetal when formingis obviated, 'such gases being effectually squeezed l out and removed.In this way a solid bearing and positive action of the header upon themetal are obtained, while at the same time, and by means of theprogressive bearing and pressure of said header, the particles of metalin upsetting the head are gradually'inoved and located properly, saidwork being effectually protected from becoming damaged o r faulty by theviolent separation of its part1 cles, which has been of frequentoccurence hitherto. 'Ihe operation of my improved machine will be morerapid and effective in securing the desired object than that of any nowin use.

What I cla-im, and desire to secure by Let ters Patent, is

J ointly, the application direct ofthe upset ting or heading` die to theextremity of one of press the metal, the latter to reduce and spread znpair of toggle-jointed bars, and the eombithe staVed-up portions intothe proper sha-pe, nation, with said device, of :t'erank andeonsubstantially as described.

necting-rod, or other equivalent mechanism, to Signed this 29th day ofJune, 187 0.

operate said toggle-jointed bars in the usual REINHOLD B'OEKLEN. manner,for the purpose of imparting to the Witnesses: die simultaneously uforward and zu rolling WM. B. JACKSON,

movement, Jdie former to stave up und oom- HENRY TORsTRIGK.

